public void SaveMp3(string filename)
{
FileStream fs = new FileStream(filename, FileMode.Create, FileAccess.Write);
for (int i = 0; i < tag_list_.Count; ++i)
{
if ((int)tag_list_[i].tag == (int)ObjectType.SoundStreamBlock)
{
const int offset = 4;
data_stream_.Seek(tag_list_[i].position + offset, SeekOrigin.Begin);
StreamUtil.Copy(data_stream_, fs, (int)tag_list_[i].size - offset);
}
}
fs.Close();
}
public void Parse(Tags tags, BinaryReader reader, int size)
{
reader.BaseStream.Seek(tags.position, SeekOrigin.Begin);
image_id_ = (int)reader.ReadUInt16();
if ((int)tags.tag == (int)ObjectType.DefineBitsLossLess2)
{
is_loss_less_ = true;
byte format = reader.ReadByte();
width_ = reader.ReadUInt16();
height_ = reader.ReadUInt16();
MemoryStream ms = new MemoryStream();
StreamUtil.Copy(reader.BaseStream, ms, size - 7);
ms.Seek(0, SeekOrigin.Begin);
ICSharpCode.SharpZipLib.Zip.Compression.Streams.InflaterInputStream zis =
new ICSharpCode.SharpZipLib.Zip.Compression.Streams.InflaterInputStream(ms);
MemoryStream ms2 = new MemoryStream();
byte[] b = new byte[1024];
int s;
while ((s = zis.Read(b, 0, b.Length)) > 0)
{
ms2.Write(b, 0, s);
}
zis.Close();
ms2.Seek(0, SeekOrigin.Begin);
raw_data_ = new byte[ms2.Length];
ms2.Read(raw_data_, 0, raw_data_.Length);
}
else
{
reader.BaseStream.Seek(tags.position, SeekOrigin.Begin);
image_id_ = (int)reader.ReadUInt16();
MemoryStream ms = new MemoryStream();
StreamUtil.Copy(reader.BaseStream, ms, size - 2);
image_ = new Bitmap(ms);
}
}
public void SaveJPG(string dir)
{
if (!dir.EndsWith("\\"))
{
dir += "\\";
}
Directory.CreateDirectory(dir);
int count = 1;
byte[] jpeg_tables = null;
for (int i = 0; i < tag_list_.Count; ++i)
{
if ((int)tag_list_[i].tag == (int)ObjectType.DefineBitsJPEG || (int)tag_list_[i].tag == (int)ObjectType.DefineBitsJPEG2 ||
(int)tag_list_[i].tag == (int)ObjectType.DefineBitsJPEG3)
{
FileStream fs = null;
try
{
fs = new FileStream(dir + count.ToString("0000") + ".jpg", FileMode.Create, FileAccess.Write);
if ((int)tag_list_[i].tag == (int)ObjectType.DefineBitsJPEG3)
{
// 最初の2バイトはタグなので無視
data_reader_.BaseStream.Seek(tag_list_[i].position + 2, SeekOrigin.Begin);
int image_data_size = data_reader_.ReadInt32();
StreamUtil.Copy(data_stream_, fs, image_data_size);
}
else
{
const int header_size = 20;
byte[] pre_search = new byte[6];
data_stream_.Seek(tag_list_[i].position, SeekOrigin.Begin);
data_stream_.Read(pre_search, 0, pre_search.Length);
int offset = 2;
if (pre_search[3] == 0xD9 && pre_search[5] == 0xD8)
{
offset += 4;
}
data_stream_.Seek(tag_list_[i].position + offset, SeekOrigin.Begin);
StreamUtil.Copy(data_stream_, fs, header_size);
if (tag_list_[i].tag == 6 && jpeg_tables != null)
{
fs.Write(jpeg_tables, 2, jpeg_tables.Length - 4); // 最初と最後2バイトずつは除く
}
StreamUtil.Copy(data_stream_, fs, (int)tag_list_[i].size - header_size - offset);
}
++count;
}
finally
{
if (fs != null)
{
fs.Close();
}
}
}
else if ((int)tag_list_[i].tag == (int)ObjectType.JPEGTables)
{
jpeg_tables = new byte[tag_list_[i].size];
data_stream_.Seek(tag_list_[i].position, SeekOrigin.Begin);
data_stream_.Read(jpeg_tables, 0, (int)tag_list_[i].size);
}
}
}